Siphon for water-closet tanks



(No Model.) 2 Sheets-Sheet 1.

P. HARVEY SIPHON FOR WATER GLOSEI TANKS. No. 477,841. Patented June 28, 1892.

No Mod m 2 Sheets-Sheet 2.

P. HARVEY. SIPHON P03 WATER CLOSET TANKS.

No. 477,841. PatentedJune28,18-92.

, ZEN/17017076 746zwz'5sz'5. Now/ '-UNITED STATES PATENT OFFICE.

PATRICK IIARVEY, OF CHICAGO, ILLINOIS.

SIPHON FOR WATER-CLOSET TANKS.

SPECIFICATION forming part of Letters Patent No. 477,841, dated June 28, 1892. Application filed June 29, 1891- $erial No. 397,872- (No model.)

To all whom it may concern.-

Be it known that I, PATRICK HARVEY, a citizen of the United States, residing at Chicago, county of Cook, and State of Illinois, have invented certain new and useful Improvements in Siphons for Water Closet Tanks, which are fully set forth in thefollowing specification, reference being had to the accompanying drawings, forming a part thereof.

The purpose of this invention is to provide a siphon adapted to serve as the means of taking the Water from the service-tank of a water-closet and discharging the same into the pipe which leads to the closet, the siphon serving, as is usual in such constructions, as the overflow of the tank, such siphon being in my invention adapted automatically to give first a heavy and afterward a light flow of water, as is desirable in several forms of closets--for example, in what are known as pneumatic siphon-closets. The heavy flow is necessary to prime and bring into action the siphon of the closet to cause it to operate to evacuate the bowl, and the lighter fiow of an insufficient quantity of water to prime the closet-siphon is necessary. for what istechnically known as the afterwash, needed to fillthe traps and bowlto a proper point for sealing the passages. In what are known as washouts the heavy flow is needed first for the primary discharge eifected by the mo mentum of the water, and the lighter flow .is

needed afterward for the purpose of filling the water-space in the bowl. In what are known as siphon-jet closets the heavy flow is needed to give a forcible jet by the action of which the siphonic action of the closet is set up and the closetvacuated,and the lighter flow is needed for the filling. or afterwash,as in pneumatic siphons. My invention, therefore, is adapted to be used in connection with any of these closets {and it consists in a compound siphon or two siphons whose discharge-limbs both lead into the main water-pipe from the tank to the closet, the supply which one of said siphons is capable of afiording being insufficient to fully occupy the space through which the discharge is made, and the supply afiorded by both the siphonsbeing more than sufficient to occupy said space, so that discharge is elfected by the pressure of accumulated water behind the discharge.

In the drawings, Figure 1 is aperspective of a preferred form of my compound or double siphon. Fig. 2 is a vertical section at theline 2 2 on Fig. 1. Fig. 3 is a section at the line 3 3 on Fig. 2. Fig. 4 is a section at. the line 4 4 through the siphon-tube,only withoutthe valve-seat or thimble. Fig. 5 is a vertical section of a modified form of my invention in which the two siphons are independent mechanically and both discharge through the thimble which contains the valve-seat below said seat. Fig. 6 is a vertical section of a second modified form in which the two siphons are mechanically independent, but both discharge through the valve.

I will describe first the construction shown I in Figs. I to 4, inclusive: A represents the bottom of a tank or service-box of ordinary construction; B, a threaded thimble having a flange B, by which itis adapted to be clamped to the bottom plank A, and having a vertical fiange B ,"which constitutes the valve-seat. O is a fitting which is employed in pneumatic siphon-closets, being the initial fitting of the water-supply pipe adapted to be screwed onto the thimble B, and thereby to clamp the latter firmly to the bottom, and having the water-discharge terminal 0, adapted to be con-,

nected to the service-pipe of the closet, and having the air-exhaust intake 0 whose terminal is adapted to be connected to the airexhaust pipe to draw the air from the closet to set up siphonic action therein in a manner which is familiar. So far as already described the construction is a familiar one. D D is the valve, adapted to seat upon the valve-seat B It is formed as an annular flange D upon the diaphragm D" of the cylinder E. This cylinder has its interior space divided by two vertical diametrical partitions E andIE 'atright angles to each other, whereby the inte-.:

rior cavity of the cylinder isdivided into four quarters,whioh would be noncom'municating, except for the fact that the partition E 'is I cut away at the upper end, so that the two spaces E and E on opposite sides of said partition and 'on the same side of the partition E communicate at their upper ends, and likewise the two spaces E and E onthe opposite TOO side of the partition E from the spaces E and I E and on opposite sides, respectively, of the partition E communicate with each other at their upper ends. The diaphragm D of the valve closes the lower ends of the chambers E E E and E", and the cap F is provided to close their upper ends, except as to the communications already described through the cut-away portion of the-partition E This cap has the flange F fitting around the upper end of the cylinder, and in order to make .it easily practicable to join the dial phragm E into the cap it is provided with a diametrical furrow, which receives the upper 5 end of said diaphragm, which projects a little above the margin of the cylinder at the upper end, in order that it may lentersaid furrow, so that the cap may be readily soldered and snake a water-tight junction with both t'hacylinderandthediaphragm. Through the f Willlllfif said cylinder .an opening E is made into the chamber E and a similar opening E is made into the chamber E the latter 1opening being at a lower point than the former.

In practice 1 prefer to .cast the two dial phragims E :and E together with segmental Walls E and E", so {that the entire structure, 1 which 13156911 in the-crosssectionof the-same 1 in 41, may ,be inserted into :a plain .cylinder E and the segmental walls E and E joined by solder to the inn-er surface of the 3 cylinder, thus in .a si mple manner marking the longitudinal chambers described in the cyl-; inder. Whenso constructed, I make thesaid interior section, havi-ngthe partitions E E and walls E and E, protruded beyond thei cylinder at the {lower .end, so that the pro-? tnuding-portion forms a guide for the entire siphonas it is lifted and lifts the aVaLVG for the purpose of prim-ingthe siphon in the usual manner .of such structures. The said pro-" truding portion fittingwiithin the thiinble B l and being guided by its wallsand in order to I concentrate the discharge from the siphons' properly toward the outlets G of the fit -ting: C-th.at is, toward .the entrance of the dis-2 charge-pipe proper as distinguished from the i fitting-I provide zthefu nnellG,-wh ich I screw into the segmental walls E E, making those walls projectsomewhat beyond the partitions E E and E If the partition sare :insertedwith- 2 out thcisegmen tal walls E and E, as they are shown in Figs. 1 and 2, the portion ,of the: wall of the cylinder bounding the .chambersi E and Eiis extended below the value into; the thimble EB, the portion bounding the; chambers E and E beingcut .away below the valve, .and the said extended portion of the cylinder wall :may be ifillllihQIfiGXliGIldBd below the partitions far enough to permit the tun- F nelG to be screwed in between them just as it is screwed in between correspoding seg-i :menjtal' walls E and EQwhen :theconstruction j is asgabove described and-illustrated in Fig. 4. i 'llheoperation of this structure is as fol-: lows: The service-box, whose bottom is shown E is broken.

at A, contains water. When it is desired to admit water to the closet to operate the same, the valve and siphon will be operated by the usual mechanism provided for that purpose (indicated by the part F on the cap F) and the chain H connected thereto to lift it. The valve D B being thereby lit-ted off its seat, and the rush of water through the opening :t-hus .made having the efiect to draw the air from the down limbs E and E of the two siphons contained in the cylinders E, thereby priming the siphons and causing them thereafter and after the reseating of the valve to continue to draw water through their respective intakes E and E, the full quantity which both sip-hens can furnish being discharged through the funnelG and producing the designed effect of a funnel-d-ischarge that is 120 say, if the closet .isof the pneumaticsiphon class such as employed, a fitting 20+- tJh-e flow of waterwilll draw the air t'hrough'the air-intake .Ciand set up siphonic action in the closet. Theexhaust of aireffectedibythe flow of water will continue so long as 'theflow 1 is suflicient to fill the funnel G and prevent the possibility of any air being drawn down through ch-e same zcha-nnel through which the water comes-that is, it will continue solong as both siphonsare operative. This will be continued until the level of water in the service-box falls far enough .to admit :a'irthrough the intake E into the siphon E E This'siphon will then be broken without affecting the operation :of the other siphon E I), but the quantity of water which the latter siphon .can supply being insufficient tooccupy .in its flow the opening of the funnel Ger, to state the same generically, to stop the-passageleading to the closet said flow will not have effect to draw air in through the intake .0

and the siphon in the closet will -zbe thereby:

broken and the diminished quantity ozf-water supplied through the one siphon E E will .enter the closetas an afiterwash, the .quan-.

tityof such .afterwash being that which the :tarrk or service-boxicontains between the level of the intake E and the level of the intake LE By the level of these intakes it will :be understood ismeant the lcve'lat whichthe access of air through them is su fficient :to break thesi-phon-s .to which itheyirespectively pertain.

The operation of the .device will the the same substantially whatever he the vfohnuof closet supplied by it. In .a jet-closet thctwo siphons will furnish-water enough to :alforcl gaisuflicientl-y-forci ble jet to inaugurate and maintain a sufficient action of the closet, and the lonesiphon alone will be insufficient to produce such a jet, .so that the siphonic action will not be repeated after the siphon E In a washout the quantity supplied by the two siphons will be sufficient to produce .a discharge with momentum adapted for the purpose of evacuating the ficient to produce a moderate flow and make an after flush and fill.

The form above described is compact, convenient, and simple; but the same action may be performed by either of the forms of siphon shown in Figs. 5 and 6. In Fig. 5 two independent goose-neck siphons J and K are connected into the thimble below the valve-seat,

having their intakes at different levels, and

operate in the same way as above described.

In the form shown in Fig. 6 the two siphons L and M are both connected directly to the I valve and lead through it and have their intakes at difierent levels, and being connected at the upper part by a yoke N, to which the lifting-chain is attached, operate also in the same manner.

One advantage of the construction which I have herein shown in respect to the forms shown in all the figures except Fig. 5 is that the funnel G, which concentrates and directs the flow of water to the flushing-pipe, is made fast to the valve and is removable with the latter, so that if the air-pipe C or any other by-pass or vent pipe which may be employed in such connection should become obstructed, as is liable to happen, by particles of soil or fibrous matter being sucked up' into the airpipe from the discharge-passage of the closet and lodging in the air-pipe, accumulating until said pipe is throttled, or by frost crystalsforming and accumulating in the air-pipe wit-h the same result, the valve being wholly withdrawn from its seat and carrying with it the funnel permits the flushing-stream to enter and flush out such air, by-pass, or vent pipe, and by an occasional such action theair-pipe may be kept perfectly clear without discharg ing any connection or performing any awk- Ward or diflicult operation of rodding or swabbing, and the valve may be arranged to be lifted high enough at each operation to permit the first flow of water past the valve to in part enter the air-pipe and flush it.

I claim 1. In combination with the watercloset tank and the service-pipe leading therefrom to the closet, the compound siphon and valve comprising the cylinder E, subdivided by two intersecting longitudinal partitions into four passages, the passages on the same side of one of said partitions communicating at their upper ends across the other partition, whereby said communicating passages constitute two non-communicating siphons, the intake of one of said siphons through the wall of the.

cylinder being at a higher level than atthe other, substantially as set forth.

2. A water-closet tank, a valve closing the discharge-aperturethereof,aservice-pipeleading from said aperture, a siphonic duct having its discharge-limb leading through the valve,

the funnel G, connected to the valve at the lower side thereof and receiving the discharge from the siphonic duct and adapted to pass freely through the valve seat, combined with the fitting 0, having direct downward connection with the flushing-pipe and lateral connection for the air, by-pass, or vent pipe, the funnel extending past the opening tothe latter pipe, whereby when the valve is seated thefunnel directs the flowito the fiushingpipe only and is removable with the valve to permit the water to enter theby-pass or vent pipe, substantially as set forth. I 7

3. In a water-closet tank, a valve which closes the discharge-aperture thereof, and the service-pipe leading'from said aperture, and

twosiphonic ducts having their dischargelimbs leading through the valves-and their intakes at different levels, the combined capacity of said ducts being-greater than that of the discharge-passage, and the capacity of the one which has the'lower intake being less 7 than that of the discharge-passage, the funnel G, connected to the lower side of the valve and receiving the discharge from both siphonic ducts and terminating in position to direct said discharge into the service-pipe, combined with the air, bypass, or vent'pipe 0 leading off from the service-pipe in such position that 

